package learn.emp02.ex15;

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int y = scanner.nextInt();
        if(y%4==0&&y%100!=0||y%400==0){
            System.out.println("yes");
        }else{
            System.out.println("no");
        }
        scanner.close();
    }
}
